PT-2026-65763 · Apache · Apache Traffic Server

Omkhar Arasaratnam · CVE-2026-58186 · Published 2026-07-29 · Updated 2026-07-29

Mitre

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

The Apache Traffic Server webp transform plugin can decode unsafely and serve mislabeled, cacheable responses.

This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3.

Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2026-58186

Affected Products

Apache Traffic Server

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-58186 · Security Note
• https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d · Vendor Advisory